标准水银温度计

标准水银温度计属于膨胀式温度计，它是利用水银随温度升高或降低水银体积发生变化测温的。一套标准水银温度计一般是7支或9支组，个别的为13支组，它的测量范围为-60℃～300℃，分度值为0.05℃或0.1℃，有棒式和内标式两种型号。标准水银温度计感温液体为水银，校准时按照比较法进行。具有测温速度快，结构简单，测量直观，使用方便等优点，广泛用于温度测量，是工作用玻璃温度计，压力、双金属温度计等的标准器。 校准使用二等铂电阻温度计标准装置，采用比较法确定示值误差，在恒温槽中进行。测量不确定度：U=0.02℃ 校准规范: JJG 161-2010 标准水银温度计检定规程Standard mercury-in-glass thermometers belong to the category of expansion thermometers, which measure temperature by utilizing the volume change of mercury as its temperature rises or falls. A standard set of these thermometers typically comprises 7 or 9 units, with individual sets containing 13 units. Their measurement range spans from -60℃ to 300℃, with graduation values of 0.05℃ or 0.1℃, and they are available in two types: stem-type and internal-scale. The temperature-sensing liquid of standard mercury-in-glass thermometers is mercury, and calibration is carried out using the comparison method. With advantages including fast temperature response, simple structure, intuitive measurement results, and convenient operation, they are widely applied in temperature measurement and serve as standard reference instruments for working glass thermometers, pressure thermometers, bimetallic thermometers, and other similar temperature measuring devices. Calibration is conducted in a constant temperature bath using a standard setup of second-class platinum resistance thermometers, where the indication error is determined via the comparison method. Measurement uncertainty: U=0.02℃ Calibration specification: JJG 161-2010 Verification Regulation for Standard Mercury-in-Glass Thermometers.

搜集汇总

背景与挑战

背景概述

该数据集详细介绍了标准水银温度计的技术参数和应用信息。它是一种膨胀式温度计，利用水银体积随温度变化进行测量，测量范围为-60℃至300℃，分度值为0.05℃或0.1℃，常用于温度计量校准。数据集由国家计量科学数据中心维护，支持完全线上共享，适用于科研和工业领域的温度标准参考。